CVE-2025-6199
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-06-17

Last updated on: 2025-11-03

Assigner: Red Hat, Inc.

Description
A flaw was found in the GIF parser of GdkPixbuf’s LZW decoder. When an invalid symbol is encountered during decompression, the decoder sets the reported output size to the full buffer length rather than the actual number of written bytes. This logic error results in uninitialized sections of the buffer being included in the output, potentially leaking arbitrary memory contents in the processed image.
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Meta Information
Published
2025-06-17
Last Modified
2025-11-03
Generated
2026-05-07
AI Q&A
2025-06-17
EPSS Evaluated
2026-05-05
NVD
Affected Vendors & Products
Showing 6 associated CPEs
Vendor Product Version / Range
redhat enterprise_linux 8.0
gnome gdkpixbuf 2.0.0
redhat enterprise_linux 6.0
redhat enterprise_linux 7.0
redhat enterprise_linux 9.0
redhat enterprise_linux 10.0
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-200 The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
CWE-NVD-CWE-noinfo
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AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability is a flaw in the GIF parser of the GdkPixbuf library's LZW decoder. When the decoder encounters an invalid symbol during decompression, it incorrectly sets the output size to the full buffer length instead of the actual number of bytes written. This causes uninitialized parts of the memory buffer to be included in the output image, potentially leaking arbitrary memory contents. [1]


How can this vulnerability impact me? :

The vulnerability can lead to the leakage of uninitialized heap memory contents when processing specially crafted GIF images. This means that sensitive or arbitrary memory data could be exposed through the output image buffer, potentially revealing information that should remain private. The impact is considered low severity. [1]


What immediate steps should I take to mitigate this vulnerability?

To mitigate this vulnerability, you should update the GdkPixbuf library to a version where this flaw is fixed. Avoid processing untrusted or specially crafted GIF images with the affected GdkPixbuf versions. Since the vulnerability is in the GIF LZW decoder, applying security patches provided by your Linux distribution or the GdkPixbuf maintainers is recommended. [1]


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